JPH0912292A - Pallet clamp confirming device - Google Patents

Abstract

PURPOSE: To dispense with that an operator visually confirms the clap state of a pallet, by providing a sensor by which an alarm device is operated after a dog on the intermediate part between right and left arms of the pallet clamp is pressed. CONSTITUTION: Arms 8 are spread outward, and a fork is inserted until a pallet reaches the vertical wall 11 on the rear part of a driver's stand. The arms 8 are clamped inward and fixed by springs 12. A central stringer of the pallet is pinched by the arms 8, a micro-switch 14 is operated by pressing of the dog 13, and a lamp for confirming the pallet clamp, provided on the driver's stand display is turned on. As a result, when the pallet slips from the pallet clamp such as a case where pinching of the central stringer of the pallet is weak, the fact can be judged by an alarm device of the display part of a driver' s seat, and therefore, visual, confirmation by an operator is not required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet clamp confirmation device for a cargo handling vehicle equipped with a pallet clamp.

[0002]

2. Description of the Related Art In a conventional cargo handling vehicle with a pallet clamp, a pedal provided on a driver's floor is stepped on with a foot, and left and right arms are moved through a clamp wire,
The inside of the pallet was sandwiched to prevent the pallet from coming off.

[0003]

It has been considered that the pallet may be disengaged from the pallet clamp when the pallet has a weak pinch, or when the pallet collides strongly with a rack or the like. However, in the above-mentioned conventional technique, the operator has to visually confirm whether or not the pallet is disengaged from the pallet clamp.

[0004]

According to the present invention, in a cargo handling vehicle with a pallet clamp having a structure in which a fork is inserted into a pallet and the pallet can be fixed by a pallet clamp arranged in the center of the left and right forks. A pallet clamp confirmation device that is equipped with a pallet clamp sensor with a structure that activates an alarm device such as a lamp or buzzer by pushing in the dog in the middle of the arm.
The above problem has been solved.

[0005]

EXAMPLE The present invention will be described with reference to an example of an order picking vehicle. In FIG. 1, 1 is an order picking vehicle, 2 is a vehicle body of the order picking vehicle 1, 3 is a mast standing upright in the center of the vehicle body, 4 is a driver's cab which moves up and down along the mast 3, and 5 is a rear lower part of the driver's cab. A pair of left and right forks installed, 6 is a pallet clamp arranged in the middle of the left and right forks, and 7 is a pallet sensor installed at the center of the pallet clamp 6.

In the top view of the pallet clamp shown in FIG.
The pair of left and right arms 8 for clamping the scale in the pallet can be operated by stepping on the pedal 9 provided under the driver's cab.
It spreads outward through the clamp wire 10. Therefore, when loading the pallet according to the present invention, the pedal 9 is depressed, the arm 8 is spread outward, the vehicle body 2 is moved backward, and the fork 5 installed behind the vehicle body 2 is inserted into the pallet. Then, after confirming that the pallet has been inserted up to the vertical wall 11 behind the driver's cab, the foot is released from the pedal 9, and the arm 8 is tightened and fixed inward by the spring 12. Pallet clamp 6 in the pallet in the above work
It is in a state of being sandwiched between the arms 8.

At this time, as described above, the pallet is inserted up to a position where it hits the vertical wall 11 behind the cab. Therefore, the dog 13 is pushed in the middle of the pallet, the micro switch 14 is activated, and the pallet clamp confirmation lamp 15 installed in the driver's cab display is turned on.

[0008]

According to the above-mentioned invention, even when the pallet is disengaged from the pallet clamp, such as when the pallet has a weak grip, or when the pallet collides strongly with the rack, the pallet is provided on the driver's seat display. Since it can be judged by an alarm device such as a pallet clamp confirmation lamp or buzzer,
The visual confirmation by the operator is no longer necessary.

[Brief description of the drawings]

FIG. 1 shows a perspective view of an order picking vehicle.

FIG. 2 shows a top view of a pallet clamp device.

FIG. 3 shows a top view of a pallet sensor.

[Explanation of symbols]

 1 Order picking vehicle 2 Body 3 Mast 4 Driver's cab 5 Fork 6 Pallet clamp 7 Pallet sensor 8 Arm 9 Pedal 10 Clamp wire 11 Vertical wall 12 Spring 13 Dog 14 Micro switch 15 Lamp

Claims (1)

[Claims] 1. In a cargo-handling vehicle with a pallet clamp having a structure in which a fork is inserted into a pallet and the pallet can be fixed by a pallet clamp arranged in the center of the left and right forks, a dog at the middle part of the left and right arms of the pallet clamp is pushed in. The pallet clamp confirmation device has a pallet clamp sensor with a structure that activates alarm devices such as lamps and buzzers.